package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * 套餐业务实现
 */
@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {

    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;




    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

    @Override
    public void insertSetmeal(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.insert(setmeal);
        setmealDTO.setId(setmeal.getId());
        insertSetmealDish(setmealDTO);
    }

    @Override
    public void insertSetmealDish(SetmealDTO setmealDTO) {
        List<SetmealDish> setmealDishs = setmealDTO.getSetmealDishes();
        for (SetmealDish setmealDish : setmealDishs) {
            setmealDish.setSetmealId(setmealDTO.getId());
            setmealDishMapper.insert(setmealDish);
        }
    }

    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> setmealVOS = setmealMapper.pageQuery(setmealPageQueryDTO);
        return new PageResult(setmealVOS.getTotal(),setmealVOS.getResult());
    }

    @Override
    public void deleteSetmealByIds(List<Long> ids) {
        for (Long id : ids) {
            Integer status = setmealDishMapper.getStatusById(id);
            if (status == StatusConstant.ENABLE){
                throw new  DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
            }else {
                setmealMapper.deleteSetmealById(id);
                setmealDishMapper.deleteSetmealDishBySetmealId(id);
            }
        }
    }

    @Override
    public void updateSetmeal(SetmealDTO setmealDTO) {
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.updateSetmeal(setmeal);
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        setmealDishMapper.deleteSetmealDishBySetmealId(setmealDTO.getId());
        for (SetmealDish setmealDish : setmealDishes) {
            setmealDish.setSetmealId(setmealDTO.getId());
            setmealDishMapper.insert(setmealDish);
        }
    }

    @Override
    public SetmealVO getById(Long id) {
        SetmealVO setmealVO = new SetmealVO();
        Setmeal setmeal = setmealMapper.getSetmealById(id);
        BeanUtils.copyProperties(setmeal,setmealVO);
        List<SetmealDish> setmealDishes = setmealDishMapper.getSetmealDishesBySetmealId(id);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    @Override
    public void startOrStop(Integer status, Long id) {
        setmealMapper.startOrStop(status,id);
    }

}
